干旱区生态环境知识资源中心(Arid): 800 ka of Palaeoenvironmental changes in the Southwestern Mediterranean realm

Arid

DOI	10.1007/s41513-020-00123-2
	800 ka of Palaeoenvironmental changes in the Southwestern Mediterranean realm
	Torres, Trinidad 1; Valle, Maruja 2; Ortiz, Jose E.1; Soler, Vicente 3; Araujo, Rafael 4; Rivas, Maria R.2; Delgado, Antonio 5; Julia, Ramon 6; Sanchez-Palencia, Yolanda 1
通讯作者	Ortiz, Jose E.
来源期刊	JOURNAL OF IBERIAN GEOLOGY
ISSN	1698-6180
EISSN	1886-7995
出版年	2020
卷号	46 期号:2 页码:117-144
英文摘要	We provided valuable information about the palaeoenvironmental evolution of Southwestern Europe during the last 800 ka through the palynological study of the longest continuous continental Quaternary record in the Iberian Peninsula and in the Southwestern Mediterranean region. The SPD core studied here constituted the longest sequence recovered at the Padul Basin and we improved the chronological precision with respect to previous research. Furthermore, the high sampling resolution provided interesting insights into the main vegetation changes occurred at long-term timescales in the region and allowed correlating these variations with other long continental records of Europe. Dating using palaeomagnetism, amino acid racemisation, U/Th and C-14 allowed us to construct a robust Bayesian age-depth function, thereby making it possible to determine the chronological framework for the Padul record. From the palynological content of the samples, which were grouped in 11 clusters, we obtained a large variable number of minor pollen variations totalling 21 palynozones identified along the record. From the statistical analysis of the pollen data, some pollen environmental indexes were defined, allowing the reconstruction of palaeotemperature and palaeohumidity conditions. Five climatic scenarios were established: cold/arid, cold/semi-arid, cold/wet, temperate/wet (Mediterranean-climate), and warm/wet (Mediterranean-climate with higher moisture). Of note, the vegetation in the Padul Basin differed from that of other European basins with long pollen records due to regional characteristics, but main palaeoenvironmental trends were in agreement. Pinus, Steppic, Xerophilous, and Mediterranean taxa in the Padul Basin showed a continuous and dominant presence along the whole record, while only in certain periods did humidity increase, reflected by the expansion of Spores, Deciduous and Mediterranean taxa (especially in Pz 2, 7 and 13), but without any large expansion of deciduous forest. Comparison with other European records revealed the singular bioclimatic position of the Padul Basin in the Southwestern Mediterranean realm, and this part of Iberia can be considered a Quaternary vegetation refuge, mainly for mesophillous taxa and sclerophyllous oak. Although the biomes of the Padul basin and other European basins could not be compared directly, the main palaeoenvironmental trends were coincident (interstadials were marked by warmer periods and greater humidity, whereas stadials were cooler and more arid). These observations suggest that environmental changes in the Padul Basin were in tune with variations in global palaeoclimatic conditions.
英文关键词	Palynology Palaeoclimatology Padul Quaternary Southwestern Mediterranean
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E
WOS记录号	WOS:000522932100001
WOS关键词	GUADIX-BAZA BASIN ; RESOLUTION PALYNOLOGICAL RECORD ; GLACIAL-INTERGLACIAL CYCLES ; LAST CLIMATIC CYCLE ; SEDIMENTARY RECORD ; TENAGHI-PHILIPPON ; POLLEN SEQUENCE ; VEGETATION HISTORY ; MONTALBANO JONICO ; LATE PLEISTOCENE
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315014
作者单位	1.Univ Politecn Madrid, ETSI Minas & Energia, Lab Biomol Stratig, C Rios Rosas 21, Madrid 28003, Spain; 2.Univ Salamanca, Fac Ciencias, Pza Merced S-N, E-37008 Salamanca, Spain; 3.CSIC, Inst Agrobiol & Prod Nat, Avda Astrofis Fco Sanchez 3, Tenerife 38206, Spain; 4.CSIC, Museo Nacl Ciencias Nat, C Jose Gutierrez Abascal 2, Madrid 28006, Spain; 5.CSIC, Inst Andaluz Ciencias Tierra, Lab Biogeoquim Isetopos Estables, Avda Palmeras 4, Granada 18100, Spain; 6.CSIC, Inst Ciencias Tierra Jaume Almera, C Lluis Sole i Sabaris S-N, Barcelona 08028, Spain
推荐引用方式 GB/T 7714	Torres, Trinidad,Valle, Maruja,Ortiz, Jose E.,et al. 800 ka of Palaeoenvironmental changes in the Southwestern Mediterranean realm[J],2020,46(2):117-144.
APA	Torres, Trinidad.,Valle, Maruja.,Ortiz, Jose E..,Soler, Vicente.,Araujo, Rafael.,...&Sanchez-Palencia, Yolanda.(2020).800 ka of Palaeoenvironmental changes in the Southwestern Mediterranean realm.JOURNAL OF IBERIAN GEOLOGY,46(2),117-144.
MLA	Torres, Trinidad,et al."800 ka of Palaeoenvironmental changes in the Southwestern Mediterranean realm".JOURNAL OF IBERIAN GEOLOGY 46.2(2020):117-144.